retinol
Americannoun
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Chemistry. a yellowish oil, C 3 2 H 1 6 , obtained by the distillation of resin, used as a solvent and as an antiseptic.
noun
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another name for vitamin A2
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another name for rosin oil
Etymology
Origin of retinol
First recorded in 1830–40; from Greek rhētī́n(e) “resin” ( resin ) + -ol 1
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
"Using sunscreen to protect against UV damage, regular use of a topical retinol/retinoid, and avoiding smoking can all help preserve collagen and prevent its breakdown."
From Science Daily
She recommends focusing on how high up the active ingredient - the one that triggers the effect, like retinol or vitamin C - is in the ingredients list.
From BBC
Avoid products containing potent alpha hydroxy acids, beta hydroxy acids and retinol, Galamgam said.
From Los Angeles Times
Since then, I’ve religiously followed a retinol and sunscreen regime, but I still found the bags under my eyes growing and growing.
From Los Angeles Times
Ingredients like retinol or skin care routines that involve multiple steps may not be suitable for people in their teens, they note.
From New York Times
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
